Collision-proof safety rating model of wave beam guardrail based on entropy weight technique for order preference by similarity to an ideal solution

Bin Liu; Yun-wei Meng; Kun Zhang; Jian-qun Luo; Qing Yang

doi:10.1117/12.2613674

10 November 2021 Collision-proof safety rating model of wave beam guardrail based on entropy weight technique for order preference by similarity to an ideal solution

Bin Liu, Yun-wei Meng, Kun Zhang, Jian-qun Luo, Qing Yang

Author Affiliations +

Proceedings Volume 12050, International Conference on Smart Transportation and City Engineering 2021; 120502V (2021) https://doi.org/10.1117/12.2613674
Event: 2021 International Conference on Smart Transportation and City Engineering, 2021, Chongqing, China

Abstract

Guardrails are important safety facilities on expressways and are of great significance to roadside safety. With the continuous development of road construction, the design specifications of guardrails are also constantly improved, but the new code does not mention the handling of existing road guardrails. In order to solve such problems, the old guardrail must be modified accordingly in accordance with the new regulations. In order to determine the optimal plan for guardrail construction, this paper establishes a guardrail safety anti-collision evaluation model: the entropy weight method is used to determine the weight of each safety index of the guardrail, and then TOPISIS is used to obtain the close value of the plan, and the safety evaluation grade of the guardrail plan is obtained. Finally, it takes the simulation data of the three guardrail transformation schemes jointly simulated by HYPERMESH and LS-DYNA as an example, carry out the guardrail safety simulation calculation, and evaluate and analyze the three guardrail transformation schemes: Scheme one has the highest protection ability, but the cost is higher. The second option has lower protection capabilities, but the cost is lower. So as to provide scientific and accurate data basis for the optimal design of guardrail.

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Bin Liu, Yun-wei Meng, Kun Zhang, Jian-qun Luo, and Qing Yang "Collision-proof safety rating model of wave beam guardrail based on entropy weight technique for order preference by similarity to an ideal solution", Proc. SPIE 12050, International Conference on Smart Transportation and City Engineering 2021, 120502V (10 November 2021); https://doi.org/10.1117/12.2613674

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KEYWORDS

Safety

Roads

Data modeling

Collision avoidance

Computer simulations

Finite element methods

Computing systems

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